Flooring



Aug. 21, 1923. 1,465.623

- F. w. CHERRINGTON FLOORING Filed Aug. 3, 1920 Patented Aug. 21, 1923.

aaaeza I 1" series.

FRANK W. CHERRINGCEON, OF TOLEDO, OHIO, ASSIGNOR TO THE JENNISON COMPANY, or ToLnnqfonIo.

FLOORING.

Application filed August 3, 1920. Serial N0. 401,026.

To all whomit may concern:

Be it known that I, FRANK IV. CHE-BRING- TON, a citizen of the United States of America,'residing at Toledo, Lucas County, Ohlo, have invented new and useful Flooring, of which the followingis a specification.

This invention relates to interlocking wood blocks, especially designed for laying under subsequent shrinkage conditions, as for interior work.

This invention has utility when incorporated in triangular interfitting paving blocks that, when setting them together in one direction, may effect a tightening and holding of the blocks in another direction.

Referring to the drawings:

Fig. 1 is a perspective view of the blocks in the process of cutting;

Fig. 2 is a view of the completed form of oneof the preferred type of block; Fig. 3 shows a grouping of the blocks of Fig. 2 in a perspective view, in a flooring or pavement, of the herring-bone type of structure 1 4 is a perspective view of one of the set-up or tightening means for-the blocks; and

Fig-5 is a fragmentary showing of a setup of the blocks upon a base.

In the carrying out of the invention there is availed of the tree centers or heart stock of timber. This very frequently is a cull or cut away from the main portion of the timber and such heart stock may be taken, say, preferably in square form, and as so used is a very economical consumption of this material. Considering this rectangular piece of heart stock of Fig. 1, whichin practice may be of timber length, such plece may have centrally on each side a V-shaped groove 1 cut therein. With the timber thus prepared it may be diagonally sub-divided to produce the stock of general isosceles triangular form. This may then be cut into block lengths. Said block has equal sides 3 of the isosceles triangle base 4:. In this base 4: are grooved 5 similar to the grooves 1. In the assembled pavement, these grooves coact with the grooves on the adjacent block in the provision of filling openings, for receiving a plastic filler, say a pouring thereinto of hot hydro-carbon, which assists in uniting the pavement when assembled and in use. Cent-rally in the base-4 is a V-shaped seat 6 in which may angular block ofthe adjacent row.

As will be seen from Fig. 3,-there is, say

Jun-Iona 6 enter apex of the tri along the bottom of the figure, a row of blocks, having-bases 4. The next alternately disposed blocks having their bases 4 away or toward the top of the figure, and such a wedge arrangement of the blocks is con tinued for each transverse row. .Each transverse row, it-will be noted, has-projecting alternately from opposite sides therefrom, the apices 7 of theblocks and'alternating with the apices'along each side-of the row are seats 6. As the pavementrows are assembled into general. pavement, each seat receives an apex of a block of-an adjacent row.

In some be a "set-up means other than as a curb or in shown may bear thin metalpiece having a base portion 8 with a re -entrant V-portion 9 upstanding to enter a seat 6 and remote therefrom, on the opposite end of this instances of assembly there may terminal strips. Such set up means as heremember'S, upstanding and bulging V por tion 10 opposing the V portion 9 to embrace the apex 7. This set-up or tightening member of the pavement or the flooring, holdin transversely of the series of blocks as to the rows, will effect a wedge holding of oppositely arranged series of blocks, one on each side of this holding by the members 8,

9, 10. Accordingly each one.of these set-up v means 8, 9, 10, transversely of a series of rows and as disposed in the pavement for set-up means, there is a wedge holding ofthe blocks as to the terminal blocks of the rows by this set-up means.

In other instances the blocks may be assembled on a base, say of tar paper 11 (Fig. 5), into square yard form or plank form, with the interfitting meansof seat 6 and apices 7 along each side for general assembly when on the job.-

'As this flooring is especially designed for shrinkage use, there may be'a filler 12 of hot tar, which will settle down in the grooves holding the block from rocking. Theblock is preferably cresosoted or treated, with a hydro-carbon compound or other antiseptic in order that the block may be long lived and especially hardened for heavy traffic conditions. In manufacture the blocks may be cut into desired lengths after the timber has been given the general form of the base. When thus cut, it is given some measure of uniformity. However, even in this there may be slight variations, but the interlocking apices and seats 7, 6, respectively, insure that there is a uniform laying to produce the herring-bone eitect of the sinuous grain of the pairs of rows in this pavement or flooring. Furthermore this arrangement, in interlocking, has a very decided advantage because the blocks'inay very readily be measured up at the plant and sent to the job Without any shortage, for in the measurement there is accuracy which is not disturbed by any slight variation in the triangular blocks, the interlocking insuring the spacing or the fitting of the blocks in the uniform assembly for symmetry oi this herring-bone construction as Well as a symmetry in the laying.

The tar or other anchoring means for the blocks on the base hold the blocks even in shrinkage, while the interlocking permits the shrinkage to be distributed so that there is no loosening up or any bulges or large joints or cracks developed in this flooring. The hydro-carbon 12 is an effective slow flow binder for the blocks. As the material is heart stock, any instance of slight expansion is a minimum because in the general grouping of the blocks, theradial expansion is a minimum, the greater tangential. expansion is dissipated in the many joints of the apices. Under conditions of use the variations in the joints are such that there may be traffic in all directions Without loosening or otherwise disturbing the blocks or creating a condition undesirable in a pavement or flooring.

Besides the above uses and utility, there is such a suggestion of easy curve and sinuous form in the more or less closely fitting or suggested age ring arcs in the rows as assembled forming other roWs at right angles thereto, such other rows having blocks in one row disposed in one direction and the blocks in.the adjacent row disposed in the opposite direction.

2. A pavement comprising blocks of isosceles triangular form disposed in rows, the adjacent blocks having their bases on opposite sides of said rows, the apices of the blocks providing lateral projections from said rows. v i

3. A pavement comprising blocks of isosceles triangular form having the base as the long side, and a medial recess in said bases to receive theapex of another block, laterally adjacent blocks being oppositely disposed.

4. A pavement comprising blocks of isosceles triangular form and having bases with a medial recess to receive the apex of a second block, and assembly means for engaging the base recess of one block and extending in the direction of the common altitude of a group of the blocks to engage the apex of a terminal block of said group.

5. A pavement comprising triangular Wood blocks vith the age rings arching from the block bases, adjacent blocks having their bases oppositely disposed, the apiees of the blocks protruding from each side of each row.

In witness whereof I aflix my signature.

FRANK N. CHERRINGTON. 

